Caffeine & Sleep
Soda

Caffeine in Mello Yello

51mg
per 12 oz
≈ 1 coffee≈ 1 Red Bull13% of FDA daily max

Is that a lot?

Mello Yello is 13% of the FDA’s recommended daily maximum, in a single 12 oz.

Green tea
28 mg
Mello Yello
51 mg
Espresso
63 mg
Red Bull
80 mg
Coffee
95 mg
FDA daily max · 400mg
Before bed

When can I drink Mello Yello and still sleep?

Your Mello Yello cutoff
You drink it at
Bedtime
Mello Yello · 51 mg · assuming an average ~5 h half-life
At bedtime
17 mg
close to optimal
Latest safe Mello Yello: 10:51 PM

How much caffeine is in Mello Yello?

Mello Yello is a citrus soda carrying about 51 mg of caffeine per 12 oz can, right up there with Mountain Dew. It rides on a sweet 47 grams of sugar, giving it one of the bigger soda kicks.

ServingCaffeineSugar
12 oz51 mg47 g

Citrus soda; comparable to Mountain Dew.

Will Mello Yello affect your sleep?

From 51 mg, Mello Yello sits just over the 50 mg threshold and dips below within an hour. An afternoon can is usually clear by bedtime, though the sugar can add its own restlessness.

Source: Manufacturer label

Related drinks

Mello Yello & sleep — FAQ

At 51 mg it's one of the stronger sodas and starts just above the 50 mg threshold, so a late can plus its sugar could make settling down harder.

Mello Yello has 51 mg per 12 oz — about 13% of the FDA’s 400 mg daily maximum for healthy adults. That’s roughly 1 cup of coffee.

It depends on your bedtime and how fast you clear caffeine. Use the calculator above to see when Mello Yello drops below the ~50 mg “ok to sleep” threshold for your bedtime.

Track your caffeine. Sleep better.

The app does this live all day — one-tap logging, widgets, and a 30-minute pre-cutoff reminder. Free, no ads.

Get the App — it’s free